Table 1.

¹³C NMR spectroscopic data (δ) for compounds 1−12^a (δ in ppm).

No.	1	2	3	4	5	6	7	8	9	10	11	12
1	28.2	29.21	71.1	28.6	25.9	25.6	31.1	30.8	31.6	28.4	31.3	30.0
2	24.3	26.3	26.45	26.0	27.7	27.8	20.1	20.1	27.7	19.7	27.7	20.0
3	79.4	73.2	26.43	72.9	73.7	73.8	32.8	32.9	71.3	33.5	71.4	32.9
4	59.3	49.1	48.6	51.0	51.1	51.2	49.7	49.8	48.7	50.4	49.0	49.9
5	82.2	78.9	77.7	78.0	80.5	80.1	77.1	76.9	46.5	81.2	46.7	76.9
6	211.7	69.8	27.8	69.2	26.4	26.4	26.3	26.3	21.3	30.0	21.7	26.8
7	42.0	32.7	24.2	35.0	26.8	26.7	27.2	27.1	31.4	27.8	32.0	26.7
8	39.1	29.17	33.5	35.4	128.8	128.1	129.0	128.2	129.8	137.5	128.7	128.0
9	35.8	35.8	29.3	45.8	138.8	138.5	139.2	139.2	140.5	78.5	140.3	137.9
10	45.2	41.6	42.8	41.1	44.6	44.6	44.4	44.6	39.4	43.4	39.2	44.4
11	26.9	24.9	24.4	26.6	22.1	22.2	22.1	22.1	21.7	27.6	22.0	22.6
12	128.8	129.3	128.7	35.7	30.1	31.6	30.2	31.5	32.3	32.9	27.6	28.4
13	142.6	141.5	141.1	151.0	40.6	41.1	40.6	41.1	40.7	40.0	40.4	40.4
14	33.2	31.6	31.6	53.6	77.2	88.5	77.2	88.6	77.9	132.8	76.0	76.3
15	14.8	15.0	14.6	139.8	145.8	146.4	145.8	146.3	147.7	146.6	147.9	147.5
16	139.6	139.0	138.7	116.7	112.3	112.3	112.3	112.4	111.8	113.7	111.8	112.0
17	110.5	110.1	109.6	106.2	23.0	21.8	22.9	21.9	19.6	29.7	21.1	21.5
18	19.4	20.6	24.0	19.9	20.4	20.5	24.5	24.5	24.6	24.2	24.6	24.6
19	175.1	178.4	179.0	177.5	178.7	178.9	181.0	181.1	181.3	180.2	181.4	181.2
20	15.5	15.1	14.5	15.0	22.9	22.9	22.6	22.6	17.9	19.2	17.9	22.5
OMe						62.0		62.1

^aNMR data (δ) were measured at 125 MHz in CD₃OD for 1, 5, 6, 8−12; at 150 MHz in CD₃OD for 7; and at 150 MHz in DMSO-d₆ for 2−4.